Locomotive tender



NDV. s, 19.32. `F HQGG LOGOMOTIVE TENDER Eiled Nov. 13, 1931 2Sheets-Sheet 1 INVENTOR jmzcz/agg /72 n. j-mltlmin S ATTORNEY.

Nov. 8, 1932. F. HOGG LOCOMOTIVE TENDER 2 'Sheets-sheet 2 Filed Nov. 13.1951 INVENTOR. jmds/@y 25a AZ' ATTORNEY.

Patented Nov. 8, 1932 UNETED STATES PATENT OFFICE' FRANCIS HOGG, OFWESLEYVILLE, PENNSYLVANIA, ASSIGNOR TO THE STANDARD STOKER COMPANY,INCORPORATED, A. CORPORATON OF DELAWARE LOCOMOTIV'E TENDER Y Applicationfiled November 13, 1931. Serial No. 574,777?.

This invention relates to appliances for mechanically advancing coalfrom the rear to the forward portion of the coal bin of a locomotivetender, commonly termed coal pushers, for placing the Coal withinconvenient reach of the iireman or for delivering it to mechanical meansfor supply as required to the firebox of the locomotive.

It is an object of the invention to provide a coal pusher, having areciprocating crosshead or pusher head which is arranged to ride overthe surface of the body of coal in the tender bin, moving it forwardly.

It is a further object of the invention to provide a coal pusher of thelatter type which is pivoted at its rearward end permitting downwardmovement about the pivot as an axis as the supply of coal diminishes andupward movement when the supply of coal in the bin is replenished.

It is another object of the invention to provide in a coal pusherappliance, a. novel form of pusher rack that is eicient in operation,cheaply manufactured, simple in design and rigid and durable inconstruction.

A still further object of the invention resides in providing the tenderfuel bin with a coal pusher having a centrally and longitudinallyextending guide and a pusher mem- 3 her slidably supported in the guide.

Other and further objects and advantages of the invention will becomeapparent from the following description when read in conn nection withthe accompanying drawings, in

` which Fig. 1 is a longitudinal central section through a portion of alocomotive tender showing the improved coal pusher applied f, thereto;

Fig. 2 is a plan view of the improved coal pusher;

Fig. 3 is a vertical cross sectional view through the forward part of alocomotive tender with thel coal pusher applied thereto and shown in itslowermost position ;A

Fig. 4 is a sectional view on the line 4-4 of Fig. 2;

Fig. 5 is a view in elevation of Fig. 4 5GV with parts broken away;

Fig. 6 is a detail view in longitudinal section of the motor with partsin elevation;

Fig. 7 is a View similar to Fig. 1 showing a modified form of theinvention;

Fig. 8 is a sectional view on the line 8-8 of Fig. 6; and

Fig. 9 is a view in elevation of Fig. 8 with parts broken away. Y

In the drawings, referring particularly t the preferred form of theinvention illustrated in Figures 1 to 6, the locomotive tender isindicated generally by the numeral 10 provided with the fuel bin 11 andthe water compartment 12. Separating the fuel b-in 11 and the watercompartment 12 are the rear slope sheet 13, the side slope sheets 14 and15' and the fuel bin Hoor 16.

The coal pushing device, generally indicated bythe numeral 17 ispivotally mounted at the central upper portion of the rear slope sheet13. The motor 18 of the coal pushing device 17 comprises the cylinder19, the cylinder head 20 and the piston 21 fitted in the cylinder 19.The cylinder 19 is provided with transversely extending trunnions 22 and22a which are arranged to be received in and rotatable in the bores 23in the pillar blocks 24. The pillar blocks 24 are securely fastened inany suitable manner to the rear slope sheet 13. Secured to the piston 21is the piston rod 25 which passes through a stufling box 26 in thecylinder front head 27. A guide 28 for the piston rod is securelyatt-ached to the cylinder front head 27 as by bolts 29.

A plurality of cross heads 30 are secured to the piston rod 25 by meansof the piston rod keys 25a and are arranged for slidable movement in thepiston rod guide 28 during reciprocatory motion of the piston rod 25.Depending from and rigidly attached to the cross heads 30, as by weldingor bolting, is the pusher rack 31. The pusher rack 31 is preferably,though not necessarily, formed by tying together a series oftransversely extendin angle irons 32 by means of the longitudinallyextending tie bars 33. It will be obvious that the design, shape andform of the pusher rack and the particular kind of cross bars and tiebars composing it may be greatly varied as desired to provide aconstruction that is throughl the pipe 34, passage 36 and port 37 Ylighter or heavier, fabricated or cast in one into the'coal pushing itforward and as the rack moves backward the flatter face of the Vn ridesover the coal. Motion isimparted to the motor 18 by a fluid, preferablysteam,'from the locomotive boiler or any other suitable source of supplythrough the pipes 34' and35 which serve alternately as both intake .andVexhaust lines to their respective sides of the piston 21.` Thetrunnions 22 and 22a areprovided with the passages 36, 36a arranged toreceive the pipes 34 and 35 respectively. ,The passages 36, 36acommunicate with the ports 37, 37e respectively in the cylinder 19, oneport 37, opening into the cylinder adjacent the cylinder baclrhead andthe other port 37a opening into the cylinder adjacent the cylinder fronthead. Thus, when steam is passed to the cylinder, the piston 21 ismovedforward thereby pushing the piston rod 25 and its attached pusherrack 31 forward and the port 37a, passage 36a and pipe 35 becomes theexhaust line.` When steam is passed through the pipe 35, passage 36a andport 37a to' the cylinder, the piston 21is moved back thereby pullingthe piston rod 25, and pusher raclr'31 back tofits original position andthe port 37,

passage 3G and pipe 3a then becomes the exhaust line. A valve (notshown) preferably arranged in the locomotive cab, controls theV supplyof steam to oneof the pipes 34, or

x the other.

The central top portion of the rear slope sheet 13 is cut out as at 38to provide clearancefor the motor 18 when the pusher deviceV is raised.Suitable means, such as the windlass 39, is provided for lifting thepusher device when the supply of fuel in the bin 11 is replenished.` Theweight of the pusher device causes it to fall by gravity about thetrunnions as an axis as the supply of coal in the vbin diminishes.

In Figures 7, 8, and 9 is illustrated a modified form of the inventionin which the pusher device is rigidly fixed to the'rear slope sheet 1,3at its rearward end and'to the fuel bin floor 16 at its forward end andoperates beneath the body of coal in the'` tender bin.

As inthe preferred form of the invention lthe.

pusher rack 31 isA rigidly secured tothe piston rod 25 through. thecross heads 30, which4 are slidably. supported in theguide 28.- In

this form of the device the angle irons 32 forming the pusher rack 31are preferably of an inverted V-shape, though it will be obvious thatthe design, shape and construction of the pusher rack members may bealtered without departing from the scope of the invention. The guide 28may be fixed to the floor'of the tender bin by' suitable means, as bythe bracket 40, and the motor 18 is fixed toA theupper rear` portion ofthe rear slope sheet 31 by suitable means.

I claim:

1.1 The combination with a locomotive tender having a fuel bin, of areciprocable pusher formoving the fuel to the forward end of the binpivotally mounted in said bin. 2, `The combination with a locomotivetender having a fuel bin, of a'pusherl for moving the fuel to theforward end of the bin, said pusher being arranged to rest'on thesurface of the fuel in said bin and means imparting reciprocatorymotion` to said pusher. y v

3, The combination with a locomotive tender having a fuel bin, of apusher for moving the fuel to the forward end of the bin, said pusherbeing arranged to rest on the surface of the body of fuel in said binand to move downwardly with it as the supply therein isjdepleted,y andmeans imparting reciprocatory motion to said pusher.

4. In a locomotive tender Vcoal pusher, theV fixed at its rearward endto said rear wall and at its forward end. to. said floor.

6. In a. locomotive tender, a fuel bin having an inclined rear wall, apusher rack arranged to reciprocate along said rear wall, a centrallyand longitudinally extending piston rodI parallel tov said rear wall,said piston rod being fixed to said pusherv rack, and a guideV for saidpiston rod fixed at its upper and lower ends. 1

7. In a pusher device thecombination of a longitudinally extendingpiston rod, a guide for said piston rod, cross heads. fixed to saidpiston rodand slidably mounted in said guide, transversely extendingVangular pusher bars depending from and; secured to said cross heads andmeans for` imparting reciprocating motion to said piston rod.

8. In Va pusher device'the combination of i guide for said piston rod, aplurality of cross heads fixed to said piston rod and slidably mountedin said guide, a plurality of transversely extending lf-shaped barspending from and rigidly secured to said cross heads, a plurality oflongitudinally extending bars arranged to tie said V-shaped barstogether and means for imparting reciprocating motion to said pistonrod.

9. The combination with a locomotive tender having a fuel bin, of areciprocable pusher for moving the fuel to the forward end of the binpivotally mounted at its rearward end in the rearward portion of the binand means at the forward portion of the bin for raising said pusnerabout its pivotal mounting.

10. In a locomotive tender coal pusher, the combination of a motorhaving a cylinder, a piston fitting in said cylinder, a piston rodattached to said piston and extending forwardly beyond said cylinder, aguide for said piston rod, a cross head rigidly secured to said pistonrod and slidably mounted in said guide, and a pusher rack depending fromand secured to said cross head.

11. In a locomotive tender coal pusher, the combination of a motorhaving a cylinder, a piston fitting in said cylinder, a piston rodattached to said piston and extending forwardly beyond said cylinder, aguide for said piston rod, a plurality of cross heads rigidly secured tosaid piston rod and slidably mounted in said guide, and a plurality oftransversely extending angular' bars depending from and secured to saidcross heads.

12. In a locomotive tender coal pusher, the combination of a motorhaving a cylinder, a piston fitting in said cylinder, a piston rodattached to said piston and extending forwardly beyond said cylinder, aguide for said piston rod, a plurality of cross heads keyed to saidpiston rod and slidably mounted in said guide, a plurality oftransversely extending V-shaped bars depending' from and rigidly securedto said cross heads, and a. plurality of longitudinally extending barsarranged to tie said l-shaped bars together.

13. In a locomotive tender, a. fuel bin having an inclined rear wall,support members rigidly mounted on said rear wall, a coal pushercomprising pushing' means and a motor for operating said pushing means,transverse extensions from said motor received in said support membersand arranged therewith for pivotally supporting' said coal pusher.

le. In a locomotive tender a fuel bin having an inclined rear wall,support members rigidly mounted on said rear wall, a coal pushercomprising a reciprocating motor, lateral extensions from said motorreceived in said support members and arranged therewith for pivotalmovement of said motor and coal pushing means secured with and actuatedby said motor.

15. In combination, with a tender fuel bin having an inclined rear wall,of support members at the rear of said rear Wall, a. fluid pressurecylinder, lateral extensions from said cylinder received in said supportmembers and arranged ltherewith for pivotal movement of said cylinder, apiston reciprocating in said cylinder and coal pushing means connectedto said piston and arranged to be reciprocated thereby.

16. The combination, with a tender fuel bin having an inclined rearwall, of support members at the rear of said rear wall, a fluid pressurecylinder, lateral extensions from said cylinder received in said supportmembers and arranged therewith for pivotal movement of said cylinder, apiston reciprocating in said cylinder, passages in said lateralextensions communicating with said cylinder at opposite sides of saidpiston, pressure liuid lines communicating with said passages and coalpushing means connected to said piston and arrange to be reciprocatedthereby.

17. In a locomotive tender having a fuel bin with an inclined rear walland a coal pusher, support members for said coal pusher rigidly securedto said rear wall, a motor for said coal pusher, a cylinder for saidmotor, transversely extending projections from said cylinder arranged tobe pivotally mounted in said supportl members, a front head for saidcylinder, a piston in said cylinder, a piston rod attached to saidpiston and extending forwardly through and beyond said cylinder fronthead, a guide for said piston rod rigidly secured to said cylinder fronthead and a pusher member depending from and support-fed from said pistonrod.

18. 'Ihe combination, with a tender fuel bin having an inclined rearwall and a floor, of a fluid pressure cylinder fixed at the rear of saidrear wall, a piston reciprocating therein, a piston rod connected tosaid piston and extending forwardly parallel with said rear wall, aguide for said piston rod fixed at its rearward end with said cylinderand at its forward end to said fuel bin floor, and a pusher memberdepending from and supported from said piston rod.

19. In a locomotive tender having a fuel bin with an inclined rear wall,a coal pusher comprising a reciprocating pusher member and pressurefluid operated means imparting reciprocating motion to said pushermember, a pivotal connection for mounting said coal pusher from saidrear wall, passages in said pivotal connection communicating with saidpressure fluid operated means and a pressure fluid lead delivering tosaid passages.

20. In a locomotive tender having a fuel bin with an inclined rear wall,a coal pusher comprising a reciprocating pusher member and a pressureHuid operated motor imparting reciprocating motion to said pushermember, means for pivotally mounting said coal pusher'on said rear wall,a Cylinder for said motor, passages in said pivotal means communicatingWith said cylinder and pressure iuid leads delivering to said passages.

In testimony whereof I aix my signature.

FRANCIS HOGG.

